test passing env var in the same command

Author: fm7-1

.github/workflows/build.yml

@@ -59,7 +59,7 @@ jobs:
       - name: Compile code ${{ matrix.ghc }}
         run: nix develop --no-pure-eval -c cabal build
       - name: Run tests ${{ matrix.ghc }}
-        run: nix develop --no-pure-eval -c cabal test
+        run: GHC_CHARENC=GHC_NO_UNICODE nix develop --no-pure-eval -c cabal test
 
   # docker:
   #   uses: ./.github/workflows/reusable-docker.yml